Smoke Alarm Malfunctioning 3 Chirps Not BEEPS After New Battery

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First alert smoke detector chirping not beeping after new battery it's an end of life warning this smoke alarm detector needs replaced. I contacted First Alert and they told me this is normal and it has reached it's end of life and for safety reasons it needs to be replaced. The alarm guide for this model (SC9120B) shows: See BELOW
3 Beeps- Smoke Alarm
4 Beeps- CO Alarm
1 Chirp per minute means replace battery.
3 Chirps per minute means malfunction replace alarm.
5 Chirps per minute means end of life replace alarm.

First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup:


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COPYRIGHT: Unless otherwise permitted by Jamie Wagner or under the United States Copyright Act, no part of the content of this video or any video published under Jamie Wagner, shall be copied, recreated, stored, republished, or transported. Permission by Jamie Wagner is required before any use of this video not permitted under the United States Copyright Act. Please contact me first at [email protected]

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Tags :

first alert 3 beeps sc9120b 3 chirps first alert 3 chirps first alert smoke alarm chirping 3 times smoke detector 3 beeps first alert sc9120b first alert 3 beeps every minute first alert smoke and carbon monoxide alarm chirping first alert smoke alarm chirping first alert carbon monoxide alarm chirping smoke alarm malfunction first alert smoke and carbon monoxide alarm smoke alarm chirping first alert carbon monoxide alarm sound smoke alarm chirping with new battery

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    Popular Comments:

Emily Kriser (SSES) . 2020-01-09
How's it going Jamie you tell me if it's having a malfunction I don't need batteries for my alarm I have a lot of batteries of 9 volt batteries so take off the battery and make sure you go to my house my address is 272 South Main Street Ivins Utah 84738
121 2 . Reply
THE CLARENCES . 2020-01-07
Just happened after midnight. Going to have management replace it. It says on the back that 3 chirps in a minute means it’s malfunctioning.
xoxo The Clarences
121 2 . Reply
Molly Warshaw . 2019-12-18
Thank you for posting this video! I happen to have the same type of alarm and it just started doing this! Same problem with low battery chirp, then the three quick chirps that oh so happily woke me up at 3am after getting the new battery. I've had to unplug it and take the battery out to keep it quiet. My roommates and I have been going nuts trying to figure it out, good to know we just need a new one!
121 2 . Reply
jody bell . 2019-12-09
My damn smoke alarm won't stop chirpin
121 2 . Reply
uogood . 2019-11-28
Thanks for the video! Exactly the same problem. 3 chirps every 40-45 secs randomly... I was confused with 3 beeps thing
121 2 . Reply
Jf Losier . 2019-11-21
Thanks bud. I'll get a new one.
121 2 . Reply
Tylor Evans . 2019-11-01
Usually means the smoke alarm is wearing out and needs to be replaced you should replace them every 10 years.
121 2 . Reply
Katlynn Martin . 2019-10-24
hi was beyond convinced I was gonna die till I saw this video
121 2 . Reply
JOHN LOBBAN Creative . 2019-09-27
Same issue here. Thanks!
121 2 . Reply
mlim8 . 2019-08-05
Thanks for your video. Mine just acted up the same tonight.
121 2 . Reply
Antonio Claudio . 2019-07-30
Same brand same problem
121 2 . Reply
JonnyBeoulve . 2019-06-28
Thank you.
121 2 . Reply
Mark Youneva . 2019-06-18
Mine say 6 quick chirps means I'm sexy, but I already knew that. On a more serious note, I got the 3 quick chirps with no indication of what it means on the back of the alarm. My experience tells me that if the unit is over 3 years old and you've cleaned it out with a vacuum or compressed air and it's still giving out those 3 quick chirps, the unit is malfunctioning needs to be replaced stat.
121 2 . Reply
teena333 . 2019-06-03
4:15am and damn thing wont stop chirping 3 times! Had me jump out of bed with my heart racing every night for 3 days. I replaced the battery the day before and last night was OK but tonight it's at again and wont stop. I removed it and threw it. Yawn! 😴
121 2 . Reply
Neal Zalagens . 2019-06-02
Bottom line: these alarms go bad, if you have issues and it's not a battery issue then replace the alarm. If you replace the battery, don't forget to reset the alarm, it's not always "just pushing the test button" (on some you have to press and hold for up to 3 seconds.)
121 2 . Reply
Yeleika Hernandez . 2019-05-21
I have this issue now I try everything an it keeps chirping 3 times an the light is green also. Any recommendations?
121 2 . Reply
Dëinönychuş . 2019-05-11
Woke me up at 5 am tried taking out the battery. Couldnt find it soni threw it out the window
121 2 . Reply
Walter Wilkins . 2019-05-08
Yep, this is the second BRK First Alert alarm in three years I’ve had to replace - no wonder people rip them out and burn to death! If anyone knows of a better alarm it would be nice to know about. Until then, guess I’m off to buy my third alarm; great business, poor protector.
121 2 . Reply
Scott Fink . 2019-04-27
Liked to bring the thumbs up total to 420

Also, screw this alarm for starting to beep for me on a Saturday morning.
121 2 . Reply
hughjassallstars . 2019-04-25
Thanks for this. I too had the problem. First one "malfunctioned" then within two hours, a second unit malfunctioned. I called First Alert (800 number on the back) and was helped by customer service. They're sending me replacements. I had to pay $6.50 for each alarm (S&H). Easy Peasy. They have a 10 year warranty and mine are six years old.
121 2 . Reply
Jake JayJay . 2019-04-15
Can I have it?
121 2 . Reply
Shanker Dutt . 2019-04-10
had the same issue last eve, called the 800 number from the back of the unit and they are going to mail me a new one since the warranty is 10years and it wasn't that old.
121 2 . Reply
Kevin . 2019-03-31
I called First alert and they replaced my unit under the warranty. They said replacing the unit was the only solution for my model of alarm.
121 2 . Reply
Mark H . 2019-03-25
Have the exact same alarm. Month ago one in house started chirping. Changing battery no difference, still chirped. It is also wired with house power. Jus removed it. Took battery out.
Now another started to chirp in spare bedroom, but the one in master bedroom shows red. Replaced battery in master bedroom, now that one is chirping 3 chirps. One in spare bedroom quit chirping. Jus unhooked masterbedtoom from house and took it down.
Still have 5 others in house.
They were all new in July of 2014 when house was built.
They must be going bad. Annoying and worrisome. Always seem to start chirping at midnight!!
121 2 . Reply
Hixson Evolution . 2019-03-18
Thank you for explaining this! I have the same one and it just recently started the 3 chirps but I didn’t know what it meant, so thank you 🙏
121 2 . Reply
Jason&Amy McLoud . 2019-03-16
Really? A video to tell us you dont know crap? Good grief.
121 2 . Reply
C. Celestine . 2019-03-11
How did you get wiring out of the back?
121 2 . Reply
Erik van Welzen . 2019-02-20
Replaced my battery’s sundaynight (1 beep) and now 2 nights (right now) in a row in the middle of the night 3 beeps. Pretty freaky but now know that I have to buy another one...
121 2 . Reply
David Frankel . 2019-02-10
bloody awful thing
121 2 . Reply
germanshepherd13 . 2019-02-05
First alert are junk. Currently my less than 1 year old unit still does the 3 beep battery replacement sound but still does it after replacing with good batteries. Date of manufacture is 1/18. Also have poor luck with there smoke alarms. Had issues with co2 detector once before as well, unit lasted less than 2 years
121 2 . Reply
RowanneIris . 2019-01-25
Thanks for doing this video. This just started happening to me a few minutes ago after placing a fresh battery in the same detector you're using. Glad to know it's just a malfunction and not something serious.
121 2 . Reply
Allenwrench . 2019-01-20
These things are unreliable garbage - ours didn't last 3 years before they started chirping in the middle of the f'n night. I switched to Kiddie - only time will now tell.........
121 2 . Reply
Sukant Biti . 2019-01-11
I have same model but some reason i noticed i have same problem.also i noticed that there is no battery inside ? Does this chirp 3 times because of no battery ? or its malfunctioned ?

Or do you want me to try with battery and see if its resolved ? or replace the battery
121 2 . Reply
Moses Storm . 2019-01-05
thank you
121 2 . Reply
Manuel Rodriguez . 2018-12-26
!! Damn this thing. it terrorized my family last year. Had fans on it, slept in freezing temperatures with windows open, moved everyone to the living room several times. even called first alert and they said to have home inspected for deadly monoxide. thank god for your vid. becasuse I have several units chained together, they all ring 3 chirps. I brought the bad unit downstairs, and they all stopped. The bad unit chirped downstairs 3 times just like in your vid. THANK YOU for posting this. would have nice to find this on first alerts FAQ SECTION.
121 2 . Reply
Tom Burke . 2018-12-23
I have to replace First Alert standalone, battery operated units every couple of years as they start chirping also, even after replacing the batteries.
121 2 . Reply
Bruce Chase . 2018-12-18
Sure glad I found your video ... this product is junk ! ! ! I have 8 alarms that aren't even 4 years old ... 3 of them are doing the 3 chirp thing meaning they need to be replaced. I had no idea what was going on ... my poor dog wouldn't come into the house ... was digging outside to run away. This company should be sued for such a crappy product and what they put consumers and dogs through. Thanks to this video I won't waste any more money on batteries that I thought was the problem ..... FIRST ALERT IS JUNK ! thanks again for the video.
121 2 . Reply
Puck Shack . 2018-11-10
BRK replaced mine for free since it died before the 7 year warranty was up.
121 2 . Reply
ColeJ34 . 2018-10-27
Mine started doing the 3 chirps periodically over the last few weeks. I suspect First Alert makes these things to have a certain life so they can continue to stay in business if new homes are not being built. LOL It’s extremely annoying and I can’t always tell which one is doing it because it happens to quickly and where they are by location is not that far from each other. I will try buying a couple and see if replacement works.
121 2 . Reply
bailando74 . 2018-10-21
I have an answer for you. FIRST ALERT IS CRAP! Same 3 chirp problem with mine which nearly drove me insane. SOMEONE NEEDS TO START A CLASS ACTION LAWSUIT AGAINST FIRST ALERT!!
121 2 . Reply
Joe Ward . 2018-10-13
I found that after putting in a new 9 volt battery that it was still chirping. I then remembered that on this specific unit (I changed 3 batteries in. 3 units) that there was a corrosion leak on the negative contact. I then took a very sharp pocket knife and cleaned off the contact. I replaced the new battery and it stopped chirping and works well.
121 2 . Reply
The Storm . 2018-09-30
I'm watching your video at 5am after having been terrorized and tortured by the three beeps since 3am! I was hoping you were gonna say that there was a reset button I could push to get it to stop. Instead, I get to keep being tortured.
121 2 . Reply
Eryk Stacy . 2018-09-30
Look at the number of views this video has; averaging 85,000/yr. On the back of mine it says 3-beeps = malfunction & replace... WITH A DIFFERENT BRAND. Piece of junk.
121 2 . Reply
Ned Farr . 2018-09-06
Happens on mine. Hate being gaslit by a fire alarm.
121 2 . Reply
Dennis . 2018-08-25
How did you disconnect it ? The shit wont come off and its been going off for the past 3 months. 3xs every 2 minutes. can i at least get it to shut up
121 2 . Reply
Koreen Thomas . 2018-08-24
Can someone please help me mines was chirping but it stop My light is green but is also a red Flash
121 2 . Reply
Ernie Watters . 2018-08-06
my doing the same thing now
121 2 . Reply
JustinTubing . 2018-07-10
I have exact same model of smoke alarms in my homw. A few months ago, one started to chirp three times just like yours. I changed the battery but still the same. I order a new one from Amazon and solved the problem. Today, another unit started to chirp three times. I guess these detectors apparently have a life span. The most recent unit that is chirping is made in 2012 Jun 08. It looks like they need to be replaced every four years or so.
121 2 . Reply
UNCLE SNAPPY . 2018-07-07
This technique didn't work on my first alert detector. The chirp codes listed on the bottom of this type alarm dictate what the chirps mean. My alarm was 3 chirps every minute meaning a malfunction and to replace the unit. It was new in 2012 and it's 2018. Funny how it just "goes bad" never being used, hardwired and checked with volt meter plus a fresh battery installed.
Always something to cost consumers money from cheaply made products made in today's day and age.
121 2 . Reply
ASNLegends . 2018-07-07
Hmm... how many times do you have to replace the alarm? The last time I replaced the batteries was 9 months ago, and the smoke alarm was was just doing fine, nothing wrong with it. After 9 months, it made that same exact chirping noise every 45 sec after replacing the battery again..
121 2 . Reply